Wheel and axle.



T. J. LINDSAY. WHEEL`AND AXLE. APPLICATION FILED Nov. s. 1913.

1 1 68,0 1 7. I Patented YJan. 11, 14916.

,i 'lill/1111111111111 A l-IIIIIIII A @El THOMAS J'. LINDSAY, OF INDIANAPOLIS, NDIANB..

WHEEL AND AELE.

Specification of Letters Patent. Patentied an., l, llllft,

Application led November 6, 1913. Serial No. 799,434.

vhas wire spokes, is perfectly balanced, most effectively transmits stresses from the brake drum to the wheel tread and does so with the least tendency to twist the parts from their normal positions, carries vthe stresses between the brake and the brake drum through the axial center of the yContact between them, and may be used'on standard constructions of automobile rear axles and brakes in place of the common wood-spoke wheels while maintaining the tread of the wheel in the same location with relation to the rear axle.

The accompanying drawing illustrates my invention.

In this drawing, Figure 1 is a partial longitudinal section through a wheel and axle embodying my invention; and Fig. '2 is a partial side elevation showing the spoke arrangement. c

The rear axle is here shown as of the semifloating type, the driving spindle 10 being within a tubular casing member 11 in the end of which are located suitablebearings' 12 whereby the outer end of the casing member 11 supports the spindle 10I near the louter end of the latter. The spindle 10, as

here shown, projects beyondthe end of the tubular casing member 11,V and is conveniently tapered to receive the hub 13 of the driving wheel, such hub convenientlyI being held in place on the tapered end of the spindle 10 by a nut 14, beneath the cap 15,

and prevented from rotation on thel spindle' 10 by a key 16.

The hub 13 is illustrated as being` of the two-part type shown in my (5o-pending application, Ser. No. 788,428, filed Sept. 6, 1913, as such type greatly facilitates construction. A brake drum 17 is fixed on the hub 13, conveniently though not necessarilyV 19, is located within and cooperates with the inner surface of the brake druml 17, said brake 18being.-carried by a member 20 suit-` ably fixedy on the outer-.end of the tubular casing member 1l. v

rlhe periphery of the brake drum 417 is provided with an outwardly projecting circumferential flange 25, and the hub 13 is provided with an outwardly projecting circumferential flange 26, this latter flange ordinarily being considerably smaller in diameter than the former flange because of the diiferences in diameters of the hub and the rim is conveniently of the type shown in my co-pending application, Ser. No. 7 36,1181, filed Deo-13, 1912and it isunnecessary for it to be described in detail here. This rim carries theusual pneumatic tire 33, the plane of the tread of which is'indicated by the i chain line 34. The flanges 25 and 26 arelocated at such distances onv opposite sides of the plane 34' that the cones determined by the circles in which are located the inner and outer ends of the sets of spokes 2'? and such plane and are composed of elements 35 and' 36 respectively which make equal angles b with such plane 34e and intersect such 28 have their apices at equal distances a fromv plane where they interest each other. f `By the equiangular. arrangement 'of these ele ments, the balance of the wheel ish maintained, and there is as little tendency for the wheel to get out of true in one direction as in the other. Furthermore, the flange 25 is so located with respect to the brake drum 17 that the elements 35 of the cone determined by the inner and outer ends of the spokes 27 intersect the coperating contact faces of the brake drum 17 and the brake 18 at the axial center of such faces when the brake is set. By reason of this the stresses are transmitted directly from the effective center of such contact faces to the rim 29, and the pull on the brake drum is balanced. Furthermore, in order to make most edective the transmission of stresses from the.

brake drum to the rim,the spokes 27 extend from the fiange 25 to the channel 3 1 substantially tangent to the circle in which are 

